Nodal Analysis I (week 2)

Fiesta--Nodal analysis

     Nodal Analysis I:

In this experiment, we analyzed a circuit containing multiple power supplies.

Below is an image of the schematic for our circuit: a +5 volt source, -5 volt source, -3 volt source are connected to a 10 kΩ, 20 kΩ, 6.8 kΩ resistor, respectively.

     One adjustment made in our experiment was the 20 kΩ resistor. We did not have that element available, so we replaced it for a 22 kΩ resistor. 

The following is an image of our circuit set up.

Red = +5 V, White = -5 V, Yellow = -3 V, Black = Ground

     Then, we measured the voltage across the 22 kΩ and 6.8 kΩ resistors.

     Our calculations before actually setting up and testing the circuit...

     

Note: For our V1 we calculated a 0 % error; however, it is more likely that the error was minute. The DMM could only produce a value to the hundredths for our measured voltage, so that was a limiting factor. 

     Overall, the nodal analysis method was successful because the measured values were very close to our predictions.